A period of extremely prolonged undesired celibacy leading to impaired judgement (classic penis goggles syndrome) of potential mates that are quite overweight, such as someone with neckroles larger than your waistline.

Tom, "Ah man it must be the Irvine effect but I'm practically in fatchick mode."
Victor, "ah man that's terrible, but I guess you can tittyfuck her fat folds or something. Just squeeze the backfat together and you got yourself at least 3 more titties."